I add the output of dmesg. The command "cp /sys/kernel/debug/dri/0/i915_error_state > i915_error_state.txt", just outputs "no error state collected". So, I do not think, it's necessary to attach this file
** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/758562/+attachment/2091028/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/758562 Title: [GM45] Xorg freeze -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs